Owner`s manual
Table Of Contents
- Dell Precision Tower 7910 Owner's Manual
- Working on Your Computer
- Removing and Installing Components
- Recommended Tools
- System Overview
- Removing the Power Supply Unit (PSU)
- Installing the Power Supply Unit (PSU)
- Removing the Front Cover
- Installing the Front Cover
- Removing the Hard Drive
- Installing the Hard Drive
- Removing the Left Cover
- Installing the Left Cover
- Removing the Intrusion Switch
- Installing the Intrusion Switch
- Removing the PCI Card
- Installing the PCI Card
- Removing the Slimline Optical Drive
- Installing the Slimline Optical Drive
- Removing the Memory Shroud
- Installing the Memory Shroud
- Removing the Memory
- Installing the Memory
- Removing the Coin-Cell Battery
- Installing the Coin-Cell Battery
- Removing the Heatsink
- Installing the Heatsink
- Removing the Liquid Cooler Heatsink (Optional)
- Installing the Liquid Cooler Heatsink (Optional)
- Removing the HeatSink Fan
- Installing the Heatsink Fan
- Removing the PCIe Card Retention
- Installing the PCIe card retention
- Removing the System-Fan Assembly
- Installing the System-Fan Assembly
- Removing the Front Bezel
- Installing the Front Bezel
- Removing the I/O Panel and the USB 3.0 Ports
- Installing the I/O Panel and the USB 3.0 Ports
- Removing the Power Switch
- Installing the Power Switch
- Removing the Speaker
- Installing the Speaker
- Removing the Right Cover
- Installing the Right Cover
- Removing the 5.25-inch Optical Drive
- Installing the 5.25-inch Optical Drive
- Removing the HDD Thermal Sensor
- Installing the HDD Thermal Sensor
- Removing the Processor
- Installing the Processor
- Removing the Hard-Drive Fan
- Installing the Hard-Drive Fan
- Removing the Power Supply Unit (PSU) Card
- Installing the Power Supply Unit (PSU) Card
- System Board Components
- Removing the System Board
- Installing the System Board
- Additional Information
- System Setup
- Diagnostics
- Troubleshooting Your Computer
- Technical Specifications
- Contacting Dell

Feature Specification
Back I/O:
PCI Express
PCI Express x4
Tower 7910 one 98–pin connector, one 164-pin connector
PCI Express x16
Tower 7910 two 164-pin connectors (four when optional second
processor is installed)
PCI 2.3 one 124-pin connector
Front I/O:
Front USB one 14–pin connector
Internal USB one type A female, one dual-port 2x5 header
Front panel control one 2x14 pin connector
Front panel audio HDA header one 2x5 pin connector
Hard drive/ Optical drive:
SATA
Tower 7910
• two 36-pin mini-SAS connectors for HDD
• two 7-pin SATA connectors for ODD
Power
Tower 7910 one 24-pin, one 20-pin and one 4–pin connector
Table 29. Controls and Lights
Feature Specification
Power button light: off — system is off or unplugged.
solid white light — computer is operating normally.
blinking white light — computer is in stand by.
solid amber light — the computer does not start, indicating a
problem with the system board or power supply.
blinking amber light — indicates a problem has occurred with
the system board.
Drive activity light white light — blinking white light indicates that the computer
is reading data from, or writing data to the hard drive.
Network link integrity lights (back panel) green light — A good connection at 10 Mbs exists between
the network and the computer
orange light — A good connection at 100 Mbs exists
between the network and the computer.
yellow light — A good connection at 1000 Mbs exists
between the network and the computer.
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